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;
68 mono_console_init (void)
72 /* Make sure the standard file descriptors are opened */
73 fd = open ("/dev/null", O_RDWR);
74 while (fd >= 0 && fd < 3) {
75 fd = open ("/dev/null", O_RDWR);
80 static struct termios initial_attr;
83 ves_icall_System_ConsoleDriver_Isatty (HANDLE handle)
87 return isatty (GPOINTER_TO_INT (handle));
91 set_property (gint property, gboolean value)
94 gboolean callset = FALSE;
99 if (tcgetattr (STDIN_FILENO, &attr) == -1)
102 check = (attr.c_lflag & property) != 0;
103 if ((value || check) && !(value && check)) {
106 attr.c_lflag |= property;
108 attr.c_lflag &= ~property;
114 if (tcsetattr (STDIN_FILENO, TCSANOW, &attr) == -1)
122 ves_icall_System_ConsoleDriver_SetEcho (MonoBoolean want_echo)
125 return set_property (ECHO, want_echo);
129 ves_icall_System_ConsoleDriver_SetBreak (MonoBoolean want_break)
131 return set_property (IGNBRK, !want_break);
135 ves_icall_System_ConsoleDriver_InternalKeyAvailable (gint32 timeout)
139 struct timeval *tvptr;
147 FD_SET (STDIN_FILENO, &rfds);
149 divvy = div (timeout, 1000);
150 tv.tv_sec = divvy.quot;
151 tv.tv_usec = divvy.rem;
156 ret = select (STDIN_FILENO + 1, &rfds, NULL, NULL, tvptr);
157 } while (ret == -1 && errno == EINTR);
161 ret = ioctl (STDIN_FILENO, FIONREAD, &nbytes);
166 return (ret > 0) ? ret : 0;
169 static gint32 cols_and_lines;
173 terminal_get_dimensions (void)
177 if (ioctl (STDIN_FILENO, TIOCGWINSZ, &ws) == 0)
178 return (ws.ws_col << 16) | ws.ws_row;
184 terminal_get_dimensions (void)
198 if (teardown_str != NULL) {
199 write (STDOUT_FILENO, teardown_str, strlen (teardown_str));
200 g_free (teardown_str);
204 tcflush (STDIN_FILENO, TCIFLUSH);
205 tcsetattr (STDIN_FILENO, TCSANOW, &initial_attr);
206 set_property (ECHO, TRUE);
207 setup_finished = FALSE;
211 do_console_cancel_event (void)
213 static MonoClassField *cancel_handler_field;
214 MonoDomain *domain = mono_domain_get ();
216 MonoDelegate *load_value;
218 MonoMethodMessage *msg;
225 klass = mono_class_from_name (mono_defaults.corlib, "System", "Console");
229 if (cancel_handler_field == NULL) {
230 cancel_handler_field = mono_class_get_field_from_name (klass, "cancel_handler");
231 g_assert (cancel_handler_field);
234 vtable = mono_class_vtable_full (domain, klass, FALSE);
237 mono_field_static_get_value (vtable, cancel_handler_field, &load_value);
238 if (load_value == NULL)
241 klass = load_value->object.vtable->klass;
242 method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
243 g_assert (method != NULL);
244 im = mono_get_delegate_invoke (method->klass);
245 msg = mono_method_call_message_new (method, NULL, im, NULL, NULL);
246 mono_thread_pool_add ((MonoObject *) load_value, msg, NULL, NULL);
249 static gboolean in_sigint;
251 sigint_handler (int signo)
259 do_console_cancel_event ();
263 static struct sigaction save_sigcont, save_sigint, save_sigwinch;
266 sigcont_handler (int signo, void *the_siginfo, void *data)
268 // Ignore error, there is not much we can do in the sigcont handler.
269 tcsetattr (STDIN_FILENO, TCSANOW, &mono_attr);
271 if (keypad_xmit_str != NULL)
272 write (STDOUT_FILENO, keypad_xmit_str, strlen (keypad_xmit_str));
274 // Call previous handler
275 if (save_sigcont.sa_sigaction != NULL &&
276 save_sigcont.sa_sigaction != (void *)SIG_DFL &&
277 save_sigcont.sa_sigaction != (void *)SIG_IGN)
278 (*save_sigcont.sa_sigaction) (signo, the_siginfo, data);
282 sigwinch_handler (int signo, void *the_siginfo, void *data)
284 int dims = terminal_get_dimensions ();
286 cols_and_lines = dims;
288 // Call previous handler
289 if (save_sigwinch.sa_sigaction != NULL &&
290 save_sigwinch.sa_sigaction != (void *)SIG_DFL &&
291 save_sigwinch.sa_sigaction != (void *)SIG_IGN)
292 (*save_sigwinch.sa_sigaction) (signo, the_siginfo, data);
296 console_set_signal_handlers ()
298 struct sigaction sigcont, sigint, sigwinch;
300 memset (&sigcont, 0, sizeof (struct sigaction));
301 memset (&sigint, 0, sizeof (struct sigaction));
302 memset (&sigwinch, 0, sizeof (struct sigaction));
305 sigcont.sa_handler = (void *) sigcont_handler;
306 sigcont.sa_flags = 0;
307 sigemptyset (&sigcont.sa_mask);
308 sigaction (SIGCONT, &sigcont, &save_sigcont);
311 sigint.sa_handler = sigint_handler;
313 sigemptyset (&sigint.sa_mask);
314 sigaction (SIGINT, &sigint, &save_sigint);
316 // Window size changed
317 sigwinch.sa_handler = (void *) sigwinch_handler;
318 sigwinch.sa_flags = 0;
319 sigemptyset (&sigwinch.sa_mask);
320 sigaction (SIGWINCH, &sigwinch, &save_sigwinch);
324 // Currently unused, should we ever call the restore handler?
325 // Perhaps before calling into Process.Start?
328 console_restore_signal_handlers ()
330 sigaction (SIGCONT, &save_sigcont, NULL);
331 sigaction (SIGINT, &save_sigint, NULL);
332 sigaction (SIGWINCH, &save_sigwinch, NULL);
336 set_control_chars (MonoArray *control_chars, const guchar *cc)
338 /* The index into the array comes from corlib/System/ControlCharacters.cs */
340 mono_array_set (control_chars, gchar, 0, cc [VINTR]);
343 mono_array_set (control_chars, gchar, 1, cc [VQUIT]);
346 mono_array_set (control_chars, gchar, 2, cc [VERASE]);
349 mono_array_set (control_chars, gchar, 3, cc [VKILL]);
352 mono_array_set (control_chars, gchar, 4, cc [VEOF]);
355 mono_array_set (control_chars, gchar, 5, cc [VTIME]);
358 mono_array_set (control_chars, gchar, 6, cc [VMIN]);
361 mono_array_set (control_chars, gchar, 7, cc [VSWTC]);
364 mono_array_set (control_chars, gchar, 8, cc [VSTART]);
367 mono_array_set (control_chars, gchar, 9, cc [VSTOP]);
370 mono_array_set (control_chars, gchar, 10, cc [VSUSP]);
373 mono_array_set (control_chars, gchar, 11, cc [VEOL]);
376 mono_array_set (control_chars, gchar, 12, cc [VREPRINT]);
379 mono_array_set (control_chars, gchar, 13, cc [VDISCARD]);
382 mono_array_set (control_chars, gchar, 14, cc [VWERASE]);
385 mono_array_set (control_chars, gchar, 15, cc [VLNEXT]);
388 mono_array_set (control_chars, gchar, 16, cc [VEOL2]);
393 ves_icall_System_ConsoleDriver_TtySetup (MonoString *keypad, MonoString *teardown, MonoArray **control_chars, int **size)
399 dims = terminal_get_dimensions ();
401 int cols = 0, rows = 0;
403 char *str = getenv ("COLUMNS");
406 str = getenv ("LINES");
410 if (cols != 0 && rows != 0)
411 cols_and_lines = (cols << 16) | rows;
415 cols_and_lines = dims;
418 *size = &cols_and_lines;
420 /* 17 is the number of entries set in set_control_chars() above.
421 * NCCS is the total size, but, by now, we only care about those 17 values*/
422 mono_gc_wbarrier_generic_store (control_chars, (MonoObject*) mono_array_new (mono_domain_get (), mono_defaults.byte_class, 17));
423 if (tcgetattr (STDIN_FILENO, &initial_attr) == -1)
426 mono_attr = initial_attr;
427 mono_attr.c_lflag &= ~(ICANON);
428 mono_attr.c_iflag &= ~(IXON|IXOFF);
429 mono_attr.c_cc [VMIN] = 1;
430 mono_attr.c_cc [VTIME] = 0;
432 /* Disable C-y being used as a suspend character on OSX */
433 mono_attr.c_cc [VDSUSP] = 255;
435 if (tcsetattr (STDIN_FILENO, TCSANOW, &mono_attr) == -1)
438 set_control_chars (*control_chars, mono_attr.c_cc);
439 /* If initialized from another appdomain... */
443 keypad_xmit_str = keypad != NULL ? mono_string_to_utf8 (keypad) : NULL;
445 console_set_signal_handlers ();
446 setup_finished = TRUE;
447 if (!atexit_called) {
448 if (teardown != NULL)
449 teardown_str = mono_string_to_utf8 (teardown);
451 atexit (tty_teardown);