Software Público Brasileiro

/*
 * "Software pw3270, desenvolvido com base nos códigos fontes do WC3270  e X3270
 * (Paul Mattes Paul.Mattes@usa.net), de emulação de terminal 3270 para acesso a
 * aplicativos mainframe. Registro no INPI sob o nome G3270.
 *
 * Copyright (C) <2008> <Banco do Brasil S.A.>
 *
 * Este programa é software livre. Você pode redistribuí-lo e/ou modificá-lo sob
 * os termos da GPL v.2 - Licença Pública Geral  GNU,  conforme  publicado  pela
 * Free Software Foundation.
 *
 * Este programa é distribuído na expectativa de  ser  útil,  mas  SEM  QUALQUER
 * GARANTIA; sem mesmo a garantia implícita de COMERCIALIZAÇÃO ou  de  ADEQUAÇÃO
 * A QUALQUER PROPÓSITO EM PARTICULAR. Consulte a Licença Pública Geral GNU para
 * obter mais detalhes.
 *
 * Você deve ter recebido uma cópia da Licença Pública Geral GNU junto com este
 * programa; se não, escreva para a Free Software Foundation, Inc., 51 Franklin
 * St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * Este programa está nomeado como lib3270++.h e possui - linhas de código.
 *
 * Contatos:
 *
 * perry.werneck@gmail.com	(Alexandre Perry de Souza Werneck)
 * erico.mendonca@gmail.com	(Erico Mascarenhas Mendonça)
 *
 */

/**
 * @file src/lib3270++/local.cc
 *
 * @brief Implement lib3270 direct access layout (NO IPC).
 *
 * @author perry.werneck@gmail.com
 *
 */

 #include "private.h"
 #include <lib3270/actions.h>

 using std::string;

/*---[ Implement ]----------------------------------------------------------------------------------*/

 namespace TN3270 {

	LocalSession::LocalSession() : Abstract::Session() {

		std::lock_guard<std::mutex> lock(sync);

		this->hSession = lib3270_session_new("");
		lib3270_set_user_data(this->hSession,(void *) this);
		setCharSet(lib3270_get_display_charset(this->hSession));

		lib3270_set_popup_handler(this->hSession, popupHandler);

	}

	/// @brief Popup Handler.
	int LocalSession::popupHandler(H3270 *h3270, LIB3270_NOTIFY type, const char *title, const char *msg, const char *fmt, va_list arg) {

		LocalSession * session = (LocalSession *) lib3270_get_user_data(h3270);

		if(!session) {
			throw std::runtime_error("Invalid session handler");
		}

        class PopupEvent : public Event {
		private:
			LIB3270_NOTIFY type;
			string title;
			string msg;
			string description;

		public:
			PopupEvent(LIB3270_NOTIFY type, const char *title, const char *msg, const char *fmt, va_list arg) : Event(Event::Popup) {

				this->type = type;
				this->title = title;
				this->msg = msg;

				char * buffer = NULL;
				if(vasprintf(&buffer,fmt,arg) != -1) {
					this->description = buffer;
					free(buffer);
				}

#ifdef DEBUG
				std::cerr	<< "Popup:"				<< std::endl
							<<	"\t" << title		<< std::endl
							<<	"\t" << msg			<< std::endl
							<<	"\t" <<	description	<< std::endl;
#endif // DEBUG

			}

			virtual ~PopupEvent() {
			}

			/// @brief Get event description.
			std::string toString() const override {
				return msg;
			}


        };

        session->fire(PopupEvent(type,title,msg,fmt,arg));

        return 0;

	}

	LocalSession::~LocalSession() {

		std::lock_guard<std::mutex> lock(sync);

		lib3270_session_free(this->hSession);
		this->hSession = nullptr;
	}

	void LocalSession::wait(time_t timeout) {

		int rc = lib3270_wait_for_ready(this->hSession, timeout);

		if(rc) {
			throw std::system_error(rc, std::system_category());
		}

	}

	void LocalSession::connect(const char *url) {
		std::lock_guard<std::mutex> lock(sync);
		int rc = lib3270_connect_url(hSession,url,0);

		if(rc) {
            throw std::system_error(rc, std::system_category());
		}

		wait();

	}

	void LocalSession::disconnect() {
		std::lock_guard<std::mutex> lock(sync);
		lib3270_disconnect(hSession);
	}

	// Wait for session state.
	void LocalSession::waitForReady(time_t timeout) throw() {

		std::lock_guard<std::mutex> lock(sync);
		wait(timeout);

	}

	// Gets
	std::string LocalSession::toString() const {
		std::lock_guard<std::mutex> lock(const_cast<LocalSession *>(this)->sync);
	}

	std::string	LocalSession::toString(int baddr, size_t len, bool lf) {
		std::lock_guard<std::mutex> lock(sync);
	}

	std::string	LocalSession::toString(int row, int col, size_t sz, bool lf) {
		std::lock_guard<std::mutex> lock(sync);
	}

	ProgramMessage LocalSession::getProgramMessage() const {
		std::lock_guard<std::mutex> lock(const_cast<LocalSession *>(this)->sync);
		return (ProgramMessage) lib3270_get_program_message(this->hSession);
	}

	ConnectionState LocalSession::getConnectionState() const {
		std::lock_guard<std::mutex> lock(const_cast<LocalSession *>(this)->sync);
		return (ConnectionState) lib3270_get_connection_state(this->hSession);
	}

	/// @brief Set field at current posicion, jumps to next writable field.
	TN3270::Session & LocalSession::push(const char *text) {
		std::lock_guard<std::mutex> lock(sync);
		return *this;
	}

	TN3270::Session & LocalSession::push(int baddr, const std::string &text) {
		std::lock_guard<std::mutex> lock(sync);
		return *this;
	}

	TN3270::Session & LocalSession::push(int row, int col, const std::string &text) {
		std::lock_guard<std::mutex> lock(sync);
		return *this;
	}

	TN3270::Session & LocalSession::push(const PFKey key) {
		std::lock_guard<std::mutex> lock(sync);
		lib3270_pfkey(hSession,(int) key);
		return *this;
	}

	TN3270::Session & LocalSession::push(const PAKey key) {
		std::lock_guard<std::mutex> lock(sync);
		lib3270_pakey(hSession,(int) key);
		return *this;
	}

	TN3270::Session & LocalSession::push(const Action action) {
		std::lock_guard<std::mutex> lock(sync);
		return *this;
	}

	TN3270::Session & LocalSession::pop(int baddr, std::string &text) {
		std::lock_guard<std::mutex> lock(sync);
		return *this;
	}

	TN3270::Session & LocalSession::pop(int row, int col, std::string &text) {
		std::lock_guard<std::mutex> lock(sync);
		return *this;
	}

	TN3270::Session & LocalSession::pop(std::string &text) {
		std::lock_guard<std::mutex> lock(sync);
		return *this;
	}

 }