Added MonoString<->UTF-32 conversion helper functions.

[mono.git] / mono / metadata / console-unix.c

diff --git a/mono/metadata/console-unix.c b/mono/metadata/console-unix.c
index 0845c64f466729cb8c9e58dc85793f413548d670..6a70b350085b9d7183412a63aaf9f9860fc28cf0 100644 (file)
--- a/mono/metadata/console-unix.c
+++ b/mono/metadata/console-unix.c
@@ -6,6 +6,9 @@
  *
  * Copyright (C) 2005-2009 Novell, Inc. (http://www.novell.com)
  */
+#if defined(__native_client__)
+#include "console-null.c"
+#else
 
 #include <config.h>
 #include <glib.h>
@@ -14,6 +17,9 @@
 #include <fcntl.h>
 #include <errno.h>
 #include <signal.h>
+#ifdef HAVE_SYS_SELECT_H
+#    include <sys/select.h>
+#endif
 #ifdef HAVE_SYS_TIME_H
 #    include <sys/time.h>
 #endif
@@ -25,8 +31,10 @@
 #include <mono/metadata/object-internals.h>
 #include <mono/metadata/class-internals.h>
 #include <mono/metadata/domain-internals.h>
+#include <mono/metadata/gc-internal.h>
 #include <mono/metadata/metadata.h>
 #include <mono/metadata/threadpool.h>
+#include <mono/utils/mono-signal-handler.h>
 
 /* On solaris, curses.h must come before both termios.h and term.h */
 #ifdef HAVE_CURSES_H
@@ -64,6 +72,9 @@ static gchar *keypad_xmit_str;
 static struct termios mono_attr;
 #endif
 
+/* static void console_restore_signal_handlers (void); */
+static void console_set_signal_handlers (void);
+
 void
 mono_console_init (void)
 {
@@ -173,10 +184,14 @@ static int
 terminal_get_dimensions (void)
 {
        struct winsize ws;
-
-       if (ioctl (STDIN_FILENO, TIOCGWINSZ, &ws) == 0)
-               return (ws.ws_col << 16) | ws.ws_row;
-
+       int ret;
+       int save_errno = errno;
+       
+       if (ioctl (STDIN_FILENO, TIOCGWINSZ, &ws) == 0){
+               ret = (ws.ws_col << 16) | ws.ws_row;
+               errno = save_errno;
+               return ret;
+       } 
        return -1;
 }
 #else
@@ -190,13 +205,15 @@ terminal_get_dimensions (void)
 static void
 tty_teardown (void)
 {
+       int unused;
+
        MONO_ARCH_SAVE_REGS;
 
        if (!setup_finished)
                return;
 
        if (teardown_str != NULL) {
-               write (STDOUT_FILENO, teardown_str, strlen (teardown_str));
+               unused = write (STDOUT_FILENO, teardown_str, strlen (teardown_str));
                g_free (teardown_str);
                teardown_str = NULL;
        }
@@ -219,6 +236,7 @@ do_console_cancel_event (void)
        MonoMethod *im;
        MonoVTable *vtable;
 
+       /* FIXME: this should likely iterate all the domains, instead */
        if (!domain->domain)
                return;
 
@@ -246,30 +264,45 @@ do_console_cancel_event (void)
        mono_thread_pool_add ((MonoObject *) load_value, msg, NULL, NULL);
 }
 
+static int need_cancel = FALSE;
+/* this is executed from the finalizer thread */
+void
+mono_console_handle_async_ops (void)
+{
+       if (need_cancel) {
+               need_cancel = FALSE;
+               do_console_cancel_event ();
+       }
+}
+
 static gboolean in_sigint;
-static void
-sigint_handler (int signo)
+
+MONO_SIGNAL_HANDLER_FUNC (static, sigint_handler, (int signo))
 {
+       int save_errno;
        MONO_ARCH_SAVE_REGS;
 
        if (in_sigint)
                return;
 
        in_sigint = TRUE;
-       do_console_cancel_event ();
+       save_errno = errno;
+       need_cancel = TRUE;
+       mono_gc_finalize_notify ();
+       errno = save_errno;
        in_sigint = FALSE;
 }
 
 static struct sigaction save_sigcont, save_sigint, save_sigwinch;
 
-static void
-sigcont_handler (int signo, void *the_siginfo, void *data)
+MONO_SIGNAL_HANDLER_FUNC (static, sigcont_handler, (int signo, void *the_siginfo, void *data))
 {
+       int unused;
        // 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));
+               unused = write (STDOUT_FILENO, keypad_xmit_str, strlen (keypad_xmit_str));
 
        // Call previous handler
        if (save_sigcont.sa_sigaction != NULL &&
@@ -278,8 +311,7 @@ sigcont_handler (int signo, void *the_siginfo, void *data)
                (*save_sigcont.sa_sigaction) (signo, the_siginfo, data);
 }
 
-static void
-sigwinch_handler (int signo, void *the_siginfo, void *data)
+MONO_SIGNAL_HANDLER_FUNC (static, sigwinch_handler, (int signo, void *the_siginfo, void *data))
 {
        int dims = terminal_get_dimensions ();
        if (dims != -1)
@@ -292,7 +324,27 @@ sigwinch_handler (int signo, void *the_siginfo, void *data)
                (*save_sigwinch.sa_sigaction) (signo, the_siginfo, data);
 }
 
-void
+/*
+ * console_set_signal_handlers:
+ *
+ * Installs various signals handlers for the use of the console, as
+ * follows:
+ *
+ * SIGCONT: this is received after the application has resumed execution
+ * if it was suspended with Control-Z before.   This signal handler needs
+ * to resend the terminal sequence to send keyboard in keypad mode (this
+ * is the difference between getting a cuu1 code or a kcuu1 code for up-arrow
+ * for example
+ *
+ * SIGINT: invokes the System.Console.DoConsoleCancelEvent method using
+ * a thread from the thread pool which notifies all registered cancel_event
+ * listeners.
+ *
+ * SIGWINCH: is used to track changes to the console window when a GUI
+ * terminal is resized.    It sets an internal variable that is checked
+ * by System.Console when the Terminfo driver has been activated.
+ */
+static void
 console_set_signal_handlers ()
 {
        struct sigaction sigcont, sigint, sigwinch;
@@ -308,7 +360,7 @@ console_set_signal_handlers ()
        sigaction (SIGCONT, &sigcont, &save_sigcont);
        
        // Interrupt handler
-       sigint.sa_handler = sigint_handler;
+       sigint.sa_handler = (void *) sigint_handler;
        sigint.sa_flags = 0;
        sigemptyset (&sigint.sa_mask);
        sigaction (SIGINT, &sigint, &save_sigint);
@@ -320,6 +372,7 @@ console_set_signal_handlers ()
        sigaction (SIGWINCH, &sigwinch, &save_sigwinch);
 }
 
+#if currently_unuused
 //
 // Currently unused, should we ever call the restore handler?
 // Perhaps before calling into Process.Start?
@@ -331,6 +384,7 @@ console_restore_signal_handlers ()
        sigaction (SIGINT, &save_sigint, NULL);
        sigaction (SIGWINCH, &save_sigwinch, NULL);
 }
+#endif
 
 static void
 set_control_chars (MonoArray *control_chars, const guchar *cc)
@@ -400,10 +454,10 @@ ves_icall_System_ConsoleDriver_TtySetup (MonoString *keypad, MonoString *teardow
        if (dims == -1){
                int cols = 0, rows = 0;
                                      
-               char *str = getenv ("COLUMNS");
+               const char *str = g_getenv ("COLUMNS");
                if (str != NULL)
                        cols = atoi (str);
-               str = getenv ("LINES");
+               str = g_getenv ("LINES");
                if (str != NULL)
                        rows = atoi (str);
 
@@ -453,3 +507,5 @@ ves_icall_System_ConsoleDriver_TtySetup (MonoString *keypad, MonoString *teardow
 
        return TRUE;
 }
+#endif /* #if defined(__native_client__) */
+