2 * console-io.c: ConsoleDriver internal calls for Unix systems.
5 * Gonzalo Paniagua Javier (gonzalo@ximian.com)
7 * Copyright (C) 2005-2009 Novell, Inc. (http://www.novell.com)
17 #ifdef HAVE_SYS_TIME_H
18 # include <sys/time.h>
20 #include <sys/types.h>
24 #include <mono/metadata/appdomain.h>
25 #include <mono/metadata/object-internals.h>
26 #include <mono/metadata/class-internals.h>
27 #include <mono/metadata/domain-internals.h>
28 #include <mono/metadata/metadata.h>
29 #include <mono/metadata/threadpool.h>
31 /* On solaris, curses.h must come before both termios.h and term.h */
42 /* Needed for FIONREAD under solaris */
43 #ifdef HAVE_SYS_FILIO_H
44 # include <sys/filio.h>
46 #ifdef HAVE_SYS_IOCTL_H
47 # include <sys/ioctl.h>
50 #include <mono/metadata/console-io.h>
51 #include <mono/metadata/exception.h>
53 static gboolean setup_finished;
54 static gboolean atexit_called;
56 /* The string used to return the terminal to its previous state */
57 static gchar *teardown_str;
59 /* The string used to set the terminal into keypad xmit mode after SIGCONT is received */
60 static gchar *keypad_xmit_str;
63 /* This is the last state used by Mono, used after a CONT signal is received */
64 static struct termios mono_attr;
67 /* static void console_restore_signal_handlers (void); */
68 static void console_set_signal_handlers (void);
71 mono_console_init (void)
75 /* Make sure the standard file descriptors are opened */
76 fd = open ("/dev/null", O_RDWR);
77 while (fd >= 0 && fd < 3) {
78 fd = open ("/dev/null", O_RDWR);
83 static struct termios initial_attr;
86 ves_icall_System_ConsoleDriver_Isatty (HANDLE handle)
90 return isatty (GPOINTER_TO_INT (handle));
94 set_property (gint property, gboolean value)
97 gboolean callset = FALSE;
102 if (tcgetattr (STDIN_FILENO, &attr) == -1)
105 check = (attr.c_lflag & property) != 0;
106 if ((value || check) && !(value && check)) {
109 attr.c_lflag |= property;
111 attr.c_lflag &= ~property;
117 if (tcsetattr (STDIN_FILENO, TCSANOW, &attr) == -1)
125 ves_icall_System_ConsoleDriver_SetEcho (MonoBoolean want_echo)
128 return set_property (ECHO, want_echo);
132 ves_icall_System_ConsoleDriver_SetBreak (MonoBoolean want_break)
134 return set_property (IGNBRK, !want_break);
138 ves_icall_System_ConsoleDriver_InternalKeyAvailable (gint32 timeout)
142 struct timeval *tvptr;
150 FD_SET (STDIN_FILENO, &rfds);
152 divvy = div (timeout, 1000);
153 tv.tv_sec = divvy.quot;
154 tv.tv_usec = divvy.rem;
159 ret = select (STDIN_FILENO + 1, &rfds, NULL, NULL, tvptr);
160 } while (ret == -1 && errno == EINTR);
164 ret = ioctl (STDIN_FILENO, FIONREAD, &nbytes);
169 return (ret > 0) ? ret : 0;
172 static gint32 cols_and_lines;
176 terminal_get_dimensions (void)
180 int save_errno = errno;
182 if (ioctl (STDIN_FILENO, TIOCGWINSZ, &ws) == 0){
183 ret = (ws.ws_col << 16) | ws.ws_row;
191 terminal_get_dimensions (void)
205 if (teardown_str != NULL) {
206 write (STDOUT_FILENO, teardown_str, strlen (teardown_str));
207 g_free (teardown_str);
211 tcflush (STDIN_FILENO, TCIFLUSH);
212 tcsetattr (STDIN_FILENO, TCSANOW, &initial_attr);
213 set_property (ECHO, TRUE);
214 setup_finished = FALSE;
218 do_console_cancel_event (void)
220 static MonoClassField *cancel_handler_field;
221 MonoDomain *domain = mono_domain_get ();
223 MonoDelegate *load_value;
225 MonoMethodMessage *msg;
232 klass = mono_class_from_name (mono_defaults.corlib, "System", "Console");
236 if (cancel_handler_field == NULL) {
237 cancel_handler_field = mono_class_get_field_from_name (klass, "cancel_handler");
238 g_assert (cancel_handler_field);
241 vtable = mono_class_vtable_full (domain, klass, FALSE);
244 mono_field_static_get_value (vtable, cancel_handler_field, &load_value);
245 if (load_value == NULL)
248 klass = load_value->object.vtable->klass;
249 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
250 g_assert (method != NULL);
251 im = mono_get_delegate_invoke (method->klass);
252 msg = mono_method_call_message_new (method, NULL, im, NULL, NULL);
253 mono_thread_pool_add ((MonoObject *) load_value, msg, NULL, NULL);
256 static gboolean in_sigint;
258 sigint_handler (int signo)
268 do_console_cancel_event ();
273 static struct sigaction save_sigcont, save_sigint, save_sigwinch;
276 sigcont_handler (int signo, void *the_siginfo, void *data)
278 // Ignore error, there is not much we can do in the sigcont handler.
279 tcsetattr (STDIN_FILENO, TCSANOW, &mono_attr);
281 if (keypad_xmit_str != NULL)
282 write (STDOUT_FILENO, keypad_xmit_str, strlen (keypad_xmit_str));
284 // Call previous handler
285 if (save_sigcont.sa_sigaction != NULL &&
286 save_sigcont.sa_sigaction != (void *)SIG_DFL &&
287 save_sigcont.sa_sigaction != (void *)SIG_IGN)
288 (*save_sigcont.sa_sigaction) (signo, the_siginfo, data);
292 sigwinch_handler (int signo, void *the_siginfo, void *data)
294 int dims = terminal_get_dimensions ();
296 cols_and_lines = dims;
298 // Call previous handler
299 if (save_sigwinch.sa_sigaction != NULL &&
300 save_sigwinch.sa_sigaction != (void *)SIG_DFL &&
301 save_sigwinch.sa_sigaction != (void *)SIG_IGN)
302 (*save_sigwinch.sa_sigaction) (signo, the_siginfo, data);
306 * console_set_signal_handlers:
308 * Installs various signals handlers for the use of the console, as
311 * SIGCONT: this is received after the application has resumed execution
312 * if it was suspended with Control-Z before. This signal handler needs
313 * to resend the terminal sequence to send keyboard in keypad mode (this
314 * is the difference between getting a cuu1 code or a kcuu1 code for up-arrow
317 * SIGINT: invokes the System.Console.DoConsoleCancelEvent method using
318 * a thread from the thread pool which notifies all registered cancel_event
321 * SIGWINCH: is used to track changes to the console window when a GUI
322 * terminal is resized. It sets an internal variable that is checked
323 * by System.Console when the Terminfo driver has been activated.
326 console_set_signal_handlers ()
328 struct sigaction sigcont, sigint, sigwinch;
330 memset (&sigcont, 0, sizeof (struct sigaction));
331 memset (&sigint, 0, sizeof (struct sigaction));
332 memset (&sigwinch, 0, sizeof (struct sigaction));
335 sigcont.sa_handler = (void *) sigcont_handler;
336 sigcont.sa_flags = 0;
337 sigemptyset (&sigcont.sa_mask);
338 sigaction (SIGCONT, &sigcont, &save_sigcont);
341 sigint.sa_handler = sigint_handler;
343 sigemptyset (&sigint.sa_mask);
344 sigaction (SIGINT, &sigint, &save_sigint);
346 // Window size changed
347 sigwinch.sa_handler = (void *) sigwinch_handler;
348 sigwinch.sa_flags = 0;
349 sigemptyset (&sigwinch.sa_mask);
350 sigaction (SIGWINCH, &sigwinch, &save_sigwinch);
353 #if currently_unuused
355 // Currently unused, should we ever call the restore handler?
356 // Perhaps before calling into Process.Start?
359 console_restore_signal_handlers ()
361 sigaction (SIGCONT, &save_sigcont, NULL);
362 sigaction (SIGINT, &save_sigint, NULL);
363 sigaction (SIGWINCH, &save_sigwinch, NULL);
368 set_control_chars (MonoArray *control_chars, const guchar *cc)
370 /* The index into the array comes from corlib/System/ControlCharacters.cs */
372 mono_array_set (control_chars, gchar, 0, cc [VINTR]);
375 mono_array_set (control_chars, gchar, 1, cc [VQUIT]);
378 mono_array_set (control_chars, gchar, 2, cc [VERASE]);
381 mono_array_set (control_chars, gchar, 3, cc [VKILL]);
384 mono_array_set (control_chars, gchar, 4, cc [VEOF]);
387 mono_array_set (control_chars, gchar, 5, cc [VTIME]);
390 mono_array_set (control_chars, gchar, 6, cc [VMIN]);
393 mono_array_set (control_chars, gchar, 7, cc [VSWTC]);
396 mono_array_set (control_chars, gchar, 8, cc [VSTART]);
399 mono_array_set (control_chars, gchar, 9, cc [VSTOP]);
402 mono_array_set (control_chars, gchar, 10, cc [VSUSP]);
405 mono_array_set (control_chars, gchar, 11, cc [VEOL]);
408 mono_array_set (control_chars, gchar, 12, cc [VREPRINT]);
411 mono_array_set (control_chars, gchar, 13, cc [VDISCARD]);
414 mono_array_set (control_chars, gchar, 14, cc [VWERASE]);
417 mono_array_set (control_chars, gchar, 15, cc [VLNEXT]);
420 mono_array_set (control_chars, gchar, 16, cc [VEOL2]);
425 ves_icall_System_ConsoleDriver_TtySetup (MonoString *keypad, MonoString *teardown, MonoArray **control_chars, int **size)
431 dims = terminal_get_dimensions ();
433 int cols = 0, rows = 0;
435 char *str = getenv ("COLUMNS");
438 str = getenv ("LINES");
442 if (cols != 0 && rows != 0)
443 cols_and_lines = (cols << 16) | rows;
447 cols_and_lines = dims;
450 *size = &cols_and_lines;
452 /* 17 is the number of entries set in set_control_chars() above.
453 * NCCS is the total size, but, by now, we only care about those 17 values*/
454 mono_gc_wbarrier_generic_store (control_chars, (MonoObject*) mono_array_new (mono_domain_get (), mono_defaults.byte_class, 17));
455 if (tcgetattr (STDIN_FILENO, &initial_attr) == -1)
458 mono_attr = initial_attr;
459 mono_attr.c_lflag &= ~(ICANON);
460 mono_attr.c_iflag &= ~(IXON|IXOFF);
461 mono_attr.c_cc [VMIN] = 1;
462 mono_attr.c_cc [VTIME] = 0;
464 /* Disable C-y being used as a suspend character on OSX */
465 mono_attr.c_cc [VDSUSP] = 255;
467 if (tcsetattr (STDIN_FILENO, TCSANOW, &mono_attr) == -1)
470 set_control_chars (*control_chars, mono_attr.c_cc);
471 /* If initialized from another appdomain... */
475 keypad_xmit_str = keypad != NULL ? mono_string_to_utf8 (keypad) : NULL;
477 console_set_signal_handlers ();
478 setup_finished = TRUE;
479 if (!atexit_called) {
480 if (teardown != NULL)
481 teardown_str = mono_string_to_utf8 (teardown);
483 atexit (tty_teardown);