--- /dev/null
+/*
+ * console-io.c: ConsoleDriver internal calls
+ *
+ * Author:
+ * Gonzalo Paniagua Javier (gonzalo@ximian.com)
+ *
+ * Copyright (C) 2005-2009 Novell, Inc. (http://www.novell.com)
+ */
+
+#include <config.h>
+#include <glib.h>
+#include <stdio.h>
+#include <string.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <signal.h>
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+#include <sys/types.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include <mono/metadata/appdomain.h>
+#include <mono/metadata/object-internals.h>
+#include <mono/metadata/class-internals.h>
+#include <mono/metadata/domain-internals.h>
+#include <mono/metadata/metadata.h>
+#include <mono/metadata/threadpool.h>
+/* On solaris, curses.h must come before both termios.h and term.h */
+#ifdef HAVE_CURSES_H
+#include <curses.h>
+#endif
+#ifdef HAVE_TERMIOS_H
+#include <termios.h>
+#endif
+#ifdef HAVE_TERM_H
+#include <term.h>
+#endif
+/* Needed for FIONREAD under solaris */
+#ifdef HAVE_SYS_FILIO_H
+#include <sys/filio.h>
+#endif
+#ifndef TIOCGWINSZ
+#ifdef HAVE_SYS_IOCTL_H
+#include <sys/ioctl.h>
+#endif
+#endif
+
+#include <mono/metadata/console-io.h>
+#include <mono/metadata/exception.h>
+
+static gboolean setup_finished;
+static gboolean atexit_called;
+
+/* The string used to return the terminal to its previous state */
+static gchar *teardown_str;
+
+/* The string used to set the terminal into keypad xmit mode after SIGCONT is received */
+static gchar *keypad_xmit_str;
+
+#ifdef HAVE_TERMIOS_H
+/* This is the last state used by Mono, used after a CONT signal is received */
+static struct termios mono_attr;
+#endif
+
+#if defined(PLATFORM_WIN32)
+void
+mono_console_init (void)
+{
+}
+#else
+void
+mono_console_init (void)
+{
+ int fd;
+
+ /* Make sure the standard file descriptors are opened */
+ fd = open ("/dev/null", O_RDWR);
+ while (fd >= 0 && fd < 3) {
+ fd = open ("/dev/null", O_RDWR);
+ }
+ close (fd);
+}
+#endif
+
+#if defined (PLATFORM_WIN32) || defined (MONO_NULL_TTYDRIVER)
+MonoBoolean
+ves_icall_System_ConsoleDriver_Isatty (HANDLE handle)
+{
+ MONO_ARCH_SAVE_REGS;
+
+ return (GetFileType (handle) == FILE_TYPE_CHAR);
+}
+
+MonoBoolean
+ves_icall_System_ConsoleDriver_SetEcho (MonoBoolean want_echo)
+{
+ return FALSE;
+}
+
+MonoBoolean
+ves_icall_System_ConsoleDriver_SetBreak (MonoBoolean want_break)
+{
+ return FALSE;
+}
+
+gint32
+ves_icall_System_ConsoleDriver_InternalKeyAvailable (gint32 timeout)
+{
+ return FALSE;
+}
+
+MonoBoolean
+ves_icall_System_ConsoleDriver_TtySetup (MonoString *keypad, MonoString *teardown, MonoArray **control_chars, int **size)
+{
+ return FALSE;
+}
+
+#else
+static struct termios initial_attr;
+
+MonoBoolean
+ves_icall_System_ConsoleDriver_Isatty (HANDLE handle)
+{
+ MONO_ARCH_SAVE_REGS;
+
+ return isatty (GPOINTER_TO_INT (handle));
+}
+
+static MonoBoolean
+set_property (gint property, gboolean value)
+{
+ struct termios attr;
+ gboolean callset = FALSE;
+ gboolean check;
+
+ MONO_ARCH_SAVE_REGS;
+
+ if (tcgetattr (STDIN_FILENO, &attr) == -1)
+ return FALSE;
+
+ check = (attr.c_lflag & property) != 0;
+ if ((value || check) && !(value && check)) {
+ callset = TRUE;
+ if (value)
+ attr.c_lflag |= property;
+ else
+ attr.c_lflag &= ~property;
+ }
+
+ if (!callset)
+ return TRUE;
+
+ if (tcsetattr (STDIN_FILENO, TCSANOW, &attr) == -1)
+ return FALSE;
+
+ mono_attr = attr;
+ return TRUE;
+}
+
+MonoBoolean
+ves_icall_System_ConsoleDriver_SetEcho (MonoBoolean want_echo)
+{
+
+ return set_property (ECHO, want_echo);
+}
+
+MonoBoolean
+ves_icall_System_ConsoleDriver_SetBreak (MonoBoolean want_break)
+{
+ return set_property (IGNBRK, !want_break);
+}
+
+gint32
+ves_icall_System_ConsoleDriver_InternalKeyAvailable (gint32 timeout)
+{
+ fd_set rfds;
+ struct timeval tv;
+ struct timeval *tvptr;
+ div_t divvy;
+ int ret, nbytes;
+
+ MONO_ARCH_SAVE_REGS;
+
+ do {
+ FD_ZERO (&rfds);
+ FD_SET (STDIN_FILENO, &rfds);
+ if (timeout >= 0) {
+ divvy = div (timeout, 1000);
+ tv.tv_sec = divvy.quot;
+ tv.tv_usec = divvy.rem;
+ tvptr = &tv;
+ } else {
+ tvptr = NULL;
+ }
+ ret = select (STDIN_FILENO + 1, &rfds, NULL, NULL, tvptr);
+ } while (ret == -1 && errno == EINTR);
+
+ if (ret > 0) {
+ nbytes = 0;
+ ret = ioctl (STDIN_FILENO, FIONREAD, &nbytes);
+ if (ret >= 0)
+ ret = nbytes;
+ }
+
+ return (ret > 0) ? ret : 0;
+}
+
+static gint32 cols_and_lines;
+
+#ifdef TIOCGWINSZ
+static int
+terminal_get_dimensions (void)
+{
+ struct winsize ws;
+
+ if (ioctl (STDIN_FILENO, TIOCGWINSZ, &ws) == 0)
+ return (ws.ws_col << 16) | ws.ws_row;
+
+ return -1;
+}
+#else
+static int
+terminal_get_dimensions (void)
+{
+ return -1;
+}
+#endif
+
+static void
+tty_teardown (void)
+{
+ MONO_ARCH_SAVE_REGS;
+
+ if (!setup_finished)
+ return;
+
+ if (teardown_str != NULL) {
+ write (STDOUT_FILENO, teardown_str, strlen (teardown_str));
+ g_free (teardown_str);
+ teardown_str = NULL;
+ }
+
+ tcflush (STDIN_FILENO, TCIFLUSH);
+ tcsetattr (STDIN_FILENO, TCSANOW, &initial_attr);
+ set_property (ECHO, TRUE);
+ setup_finished = FALSE;
+}
+
+static void
+do_console_cancel_event (void)
+{
+ static MonoClassField *cancel_handler_field;
+ MonoDomain *domain = mono_domain_get ();
+ MonoClass *klass;
+ MonoDelegate *load_value;
+ MonoMethod *method;
+ MonoMethodMessage *msg;
+ MonoMethod *im;
+
+ if (!domain->domain)
+ return;
+
+ klass = mono_class_from_name (mono_defaults.corlib, "System", "Console");
+ if (klass == NULL)
+ return;
+
+ if (cancel_handler_field == NULL) {
+ cancel_handler_field = mono_class_get_field_from_name (klass, "cancel_handler");
+ g_assert (cancel_handler_field);
+ }
+
+ mono_field_static_get_value (mono_class_vtable (domain, klass), cancel_handler_field, &load_value);
+ if (load_value == NULL)
+ return;
+
+ klass = load_value->object.vtable->klass;
+ method = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
+ g_assert (method != NULL);
+ im = mono_get_delegate_invoke (method->klass);
+ msg = mono_method_call_message_new (method, NULL, im, NULL, NULL);
+ mono_thread_pool_add ((MonoObject *) load_value, msg, NULL, NULL);
+}
+
+static gboolean in_sigint;
+static void
+sigint_handler (int signo)
+{
+ MONO_ARCH_SAVE_REGS;
+
+ if (in_sigint)
+ return;
+
+ in_sigint = TRUE;
+ do_console_cancel_event ();
+ in_sigint = FALSE;
+}
+
+static struct sigaction save_sigcont, save_sigint, save_sigwinch;
+
+static void
+sigcont_handler (int signo, void *the_siginfo, void *data)
+{
+ // Ignore error, there is not much we can do in the sigcont handler.
+ tcsetattr (STDIN_FILENO, TCSANOW, &mono_attr);
+
+ if (keypad_xmit_str != NULL)
+ write (STDOUT_FILENO, keypad_xmit_str, strlen (keypad_xmit_str));
+
+ // Call previous handler
+ if (save_sigcont.sa_sigaction != NULL &&
+ save_sigcont.sa_sigaction != (void *)SIG_DFL &&
+ save_sigcont.sa_sigaction != (void *)SIG_IGN)
+ (*save_sigcont.sa_sigaction) (signo, the_siginfo, data);
+}
+
+static void
+sigwinch_handler (int signo, void *the_siginfo, void *data)
+{
+ int dims = terminal_get_dimensions ();
+ if (dims != -1)
+ cols_and_lines = dims;
+
+ // Call previous handler
+ if (save_sigwinch.sa_sigaction != NULL &&
+ save_sigwinch.sa_sigaction != (void *)SIG_DFL &&
+ save_sigwinch.sa_sigaction != (void *)SIG_IGN)
+ (*save_sigwinch.sa_sigaction) (signo, the_siginfo, data);
+}
+
+void
+console_set_signal_handlers ()
+{
+ struct sigaction sigcont, sigint, sigwinch;
+
+ memset (&sigcont, 0, sizeof (struct sigaction));
+ memset (&sigint, 0, sizeof (struct sigaction));
+ memset (&sigwinch, 0, sizeof (struct sigaction));
+
+ // Continuing
+ sigcont.sa_handler = (void *) sigcont_handler;
+ sigcont.sa_flags = 0;
+ sigemptyset (&sigcont.sa_mask);
+ sigaction (SIGCONT, &sigcont, &save_sigcont);
+
+ // Interrupt handler
+ sigint.sa_handler = sigint_handler;
+ sigint.sa_flags = 0;
+ sigemptyset (&sigint.sa_mask);
+ sigaction (SIGINT, &sigint, &save_sigint);
+
+ // Window size changed
+ sigwinch.sa_handler = (void *) sigwinch_handler;
+ sigwinch.sa_flags = 0;
+ sigemptyset (&sigwinch.sa_mask);
+ sigaction (SIGWINCH, &sigwinch, &save_sigwinch);
+}
+
+//
+// Currently unused, should we ever call the restore handler?
+// Perhaps before calling into Process.Start?
+//
+void
+console_restore_signal_handlers ()
+{
+ sigaction (SIGCONT, &save_sigcont, NULL);
+ sigaction (SIGINT, &save_sigint, NULL);
+ sigaction (SIGWINCH, &save_sigwinch, NULL);
+}
+
+static void
+set_control_chars (MonoArray *control_chars, const guchar *cc)
+{
+ /* The index into the array comes from corlib/System/ControlCharacters.cs */
+#ifdef VINTR
+ mono_array_set (control_chars, gchar, 0, cc [VINTR]);
+#endif
+#ifdef VQUIT
+ mono_array_set (control_chars, gchar, 1, cc [VQUIT]);
+#endif
+#ifdef VERASE
+ mono_array_set (control_chars, gchar, 2, cc [VERASE]);
+#endif
+#ifdef VKILL
+ mono_array_set (control_chars, gchar, 3, cc [VKILL]);
+#endif
+#ifdef VEOF
+ mono_array_set (control_chars, gchar, 4, cc [VEOF]);
+#endif
+#ifdef VTIME
+ mono_array_set (control_chars, gchar, 5, cc [VTIME]);
+#endif
+#ifdef VMIN
+ mono_array_set (control_chars, gchar, 6, cc [VMIN]);
+#endif
+#ifdef VSWTC
+ mono_array_set (control_chars, gchar, 7, cc [VSWTC]);
+#endif
+#ifdef VSTART
+ mono_array_set (control_chars, gchar, 8, cc [VSTART]);
+#endif
+#ifdef VSTOP
+ mono_array_set (control_chars, gchar, 9, cc [VSTOP]);
+#endif
+#ifdef VSUSP
+ mono_array_set (control_chars, gchar, 10, cc [VSUSP]);
+#endif
+#ifdef VEOL
+ mono_array_set (control_chars, gchar, 11, cc [VEOL]);
+#endif
+#ifdef VREPRINT
+ mono_array_set (control_chars, gchar, 12, cc [VREPRINT]);
+#endif
+#ifdef VDISCARD
+ mono_array_set (control_chars, gchar, 13, cc [VDISCARD]);
+#endif
+#ifdef VWERASE
+ mono_array_set (control_chars, gchar, 14, cc [VWERASE]);
+#endif
+#ifdef VLNEXT
+ mono_array_set (control_chars, gchar, 15, cc [VLNEXT]);
+#endif
+#ifdef VEOL2
+ mono_array_set (control_chars, gchar, 16, cc [VEOL2]);
+#endif
+}
+
+MonoBoolean
+ves_icall_System_ConsoleDriver_TtySetup (MonoString *keypad, MonoString *teardown, MonoArray **control_chars, int **size)
+{
+ int dims;
+
+ MONO_ARCH_SAVE_REGS;
+
+ dims = terminal_get_dimensions ();
+ if (dims == -1){
+ int cols = 0, rows = 0;
+
+ char *str = getenv ("COLUMNS");
+ if (str != NULL)
+ cols = atoi (str);
+ str = getenv ("LINES");
+ if (str != NULL)
+ rows = atoi (str);
+
+ if (cols != 0 && rows != 0)
+ cols_and_lines = (cols << 16) | rows;
+ else
+ cols_and_lines = -1;
+ } else {
+ cols_and_lines = dims;
+ }
+
+ *size = &cols_and_lines;
+
+ /* 17 is the number of entries set in set_control_chars() above.
+ * NCCS is the total size, but, by now, we only care about those 17 values*/
+ *control_chars = mono_array_new (mono_domain_get (), mono_defaults.byte_class, 17);
+ if (tcgetattr (STDIN_FILENO, &initial_attr) == -1)
+ return FALSE;
+
+ mono_attr = initial_attr;
+ mono_attr.c_lflag &= ~(ICANON);
+ mono_attr.c_iflag &= ~(IXON|IXOFF);
+ mono_attr.c_cc [VMIN] = 1;
+ mono_attr.c_cc [VTIME] = 0;
+ if (tcsetattr (STDIN_FILENO, TCSANOW, &mono_attr) == -1)
+ return FALSE;
+
+ set_control_chars (*control_chars, mono_attr.c_cc);
+ /* If initialized from another appdomain... */
+ if (setup_finished)
+ return TRUE;
+
+ keypad_xmit_str = keypad != NULL ? mono_string_to_utf8 (keypad) : NULL;
+
+ console_set_signal_handlers ();
+ setup_finished = TRUE;
+ if (!atexit_called) {
+ if (teardown != NULL)
+ teardown_str = mono_string_to_utf8 (teardown);
+
+ atexit (tty_teardown);
+ }
+
+ return TRUE;
+}
+
+#endif /* !PLATFORM_WIN32 */
projects / mono.git / commitdiff