From 40e1d434ff3387fb5f1bc649ba6b33557e6ab3ac Mon Sep 17 00:00:00 2001
From: phyto <tth@phytotron.tetalab.org>
Date: Sat, 18 May 2019 17:58:44 +0200
Subject: [PATCH] making a  serial embeded terminal

---
 ui/Makefile   |  12 +++++
 ui/t.c        |   2 +-
 ui/terminal.c | 141 ++++++++++++++++++++++++++++++++++++++++++++++++++
 ui/terminal.h |   6 +++
 4 files changed, 160 insertions(+), 1 deletion(-)
 create mode 100644 ui/Makefile
 create mode 100644 ui/terminal.c
 create mode 100644 ui/terminal.h

diff --git a/ui/Makefile b/ui/Makefile
new file mode 100644
index 0000000..715a043
--- /dev/null
+++ b/ui/Makefile
@@ -0,0 +1,12 @@
+
+CC	= gcc
+CCOPT	= -Wall -g -DDEBUG_LEVEL=1
+CLIB	= core/libdd2m-core.a viz/libdd2m-viz.a
+
+OSERIAL = ../serial/serial.o ../serial/funcs.o
+
+terminal.o:	terminal.c Makefile terminal.h
+	$(CC) ${CCOPT} $< -c 
+
+t:		t.c terminal.o
+	${CC} ${CCOPT} $< terminal.o ${OSERIAL} -lncurses -o $@
diff --git a/ui/t.c b/ui/t.c
index 8151a99..a6a662e 100644
--- a/ui/t.c
+++ b/ui/t.c
@@ -58,7 +58,7 @@ if (serial_in < 0) {
 sleep(1);
 
 foo = essai_terminal(serial_in, device, K);
-
+fprintf(stderr, "essai terminal -> %d\n", foo);
 return 0;
 }
 /* ---------------------------------------------------------------- */
diff --git a/ui/terminal.c b/ui/terminal.c
new file mode 100644
index 0000000..8d8a35b
--- /dev/null
+++ b/ui/terminal.c
@@ -0,0 +1,141 @@
+/*
+ *		emulateur de terminal
+ */
+ 
+#include  <stdio.h>
+#include  <string.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/select.h>
+
+#include <ncurses.h>
+
+#include  "../serial/serial.h"
+#include  "terminal.h"
+
+extern int	verbosity;
+
+/* ---------------------------------------------------------------- */
+static void bordure(WINDOW * w, char *texte, int type)
+{
+if (type)
+	box(w, 0, 0);
+else
+	wborder(w, '|', '|', '-', '-', '+', '+', '+', '+');
+wstandout(w); mvwaddstr(w, 0, 3, texte); wstandend(w);
+wrefresh(w);
+}
+/* ---------------------------------------------------------------- */
+static int interactive(WINDOW *glass, int fd_local, int fd_remote)
+{
+int		flag_exit = 0;
+long		tstart, tcur;
+char		ligne[100];
+
+/* --- variables for select */
+struct timeval	tv;
+fd_set		rfds;
+int		retval;
+
+#if DEBUG_LEVEL
+fprintf(stderr, ">>> %s ( %p %d %d )\n", __func__,
+				glass, fd_local, fd_remote);
+#endif
+
+tstart = time(NULL);	
+
+wclear(glass);		wrefresh(glass);
+
+do	{
+	tcur = time(NULL);
+
+	FD_ZERO(&rfds);
+	FD_SET(fd_local, &rfds);	/* stdin */
+	FD_SET(fd_remote, &rfds);	/* teletype */
+	tv.tv_sec = tv.tv_sec = 0;	/* no timeout */
+
+	retval = select(2, &rfds, NULL, NULL, &tv);	
+
+
+	wrefresh(glass);	usleep(155*1000);
+
+	} while (! flag_exit);
+
+sleep(1);
+
+return -1;
+}
+/* ---------------------------------------------------------------- */
+int run_the_terminal(int fd_serial, char *title, WINDOW *win)
+{
+WINDOW		*terminal, *ecran;
+int		wid_term, hei_term, lin_term, col_term;
+int		foo;
+char		ligne[100];
+unsigned char	byte;
+int		fd_stdin;
+
+lin_term = col_term = 4;			/* position */
+wid_term = 40;
+hei_term = 25;
+
+fd_stdin = fileno(stdin);	/* for select or pool */
+
+terminal = newwin(hei_term, wid_term, lin_term, col_term);
+if ( NULL==terminal )	return -1;
+bordure(terminal, title, 1);
+
+ecran = subwin(terminal, hei_term-2, wid_term-2, lin_term+1, col_term+1);
+if ( NULL==ecran )	return -2;
+scrollok(ecran, 1);
+
+if (verbosity) {
+	foo = mvwaddstr(ecran, 2, 14, "SCREEN READY\n");
+#if DEBUG_LEVEL > 1
+	fprintf(stderr, "in '%s', mvwaddstr -> %d\n", __func__, foo);
+#endif
+	wrefresh(ecran);	sleep(2);
+	}
+
+foo = interactive(ecran, fd_stdin, fd_serial);
+
+sleep(1);
+
+
+delwin(terminal);
+touchwin(stdscr);			wrefresh(stdscr);
+
+return 0;
+}
+/* ---------------------------------------------------------------- */
+int essai_terminal(int fd, char *txt, int k)
+{
+int		lig, col;
+int		foo, retv;
+
+#if DEBUG_LEVEL
+fprintf(stderr, ">>> %s ( %d '%s' %d )\n", __func__,
+				fd, txt, k );
+#endif
+
+/*** initialisation de curses */				
+initscr();
+nonl();         cbreak();       noecho();
+
+for (lig=0; lig<LINES; lig++) {
+	for (col=0; col<COLS; col++) {
+		mvaddch(lig, col, "o+OX"[rand()%4]);	
+		}
+	}
+wrefresh(stdscr);
+
+/*** passons a la partie active */
+retv = run_the_terminal(fd, txt, stdscr);
+
+/*** terminaison de curses */
+endwin();       
+fprintf(stderr, "terminal return %d\n", retv);
+
+return 0;
+}
+/* ---------------------------------------------------------------- */
diff --git a/ui/terminal.h b/ui/terminal.h
new file mode 100644
index 0000000..2ca6522
--- /dev/null
+++ b/ui/terminal.h
@@ -0,0 +1,6 @@
+/*** terminal emulation */
+
+int run_the_terminal(int fd, char *title, WINDOW *win);
+int essai_terminal(int fd, char *txt, int k);
+
+