X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=ncurses%2Ftty%2Flib_tstp.c;h=70f805a2ad5e6fa16b5293cbc0d349e62d92a3cc;hp=aa05daf4d1f020ae4a9485356fc7f0f50bbdba77;hb=70322aa06a4a97ebff76d2869ad923cdf51ee0a9;hpb=f70db18a0c3c6a828d8a5999be37239f01c9d98a

diff --git a/ncurses/tty/lib_tstp.c b/ncurses/tty/lib_tstp.c
index aa05daf4..70f805a2 100644
--- a/ncurses/tty/lib_tstp.c
+++ b/ncurses/tty/lib_tstp.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 1998-2002,2006 Free Software Foundation, Inc.              *
+ * Copyright (c) 1998-2009,2010 Free Software Foundation, Inc.              *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
  * copy of this software and associated documentation files (the            *
@@ -46,7 +46,7 @@
 #define _POSIX_SOURCE
 #endif
 
-MODULE_ID("$Id: lib_tstp.c,v 1.33 2006/12/30 21:44:53 tom Exp $")
+MODULE_ID("$Id: lib_tstp.c,v 1.41 2010/05/15 21:31:12 tom Exp $")
 
 #if defined(SIGTSTP) && (HAVE_SIGACTION || HAVE_SIGVEC)
 #define USE_SIGTSTP 1
@@ -59,16 +59,20 @@ static const char *
 signal_name(int sig)
 {
     switch (sig) {
+#ifdef SIGALRM
     case SIGALRM:
 	return "SIGALRM";
+#endif
 #ifdef SIGCONT
     case SIGCONT:
 	return "SIGCONT";
 #endif
     case SIGINT:
 	return "SIGINT";
+#ifdef SIGQUIT
     case SIGQUIT:
 	return "SIGQUIT";
+#endif
     case SIGTERM:
 	return "SIGTERM";
 #ifdef SIGTSTP
@@ -136,6 +140,7 @@ signal_name(int sig)
 static void
 tstp(int dummy GCC_UNUSED)
 {
+    SCREEN *sp = CURRENT_SCREEN;
     sigset_t mask, omask;
     sigaction_t act, oact;
 
@@ -154,11 +159,11 @@ tstp(int dummy GCC_UNUSED)
      * parent was stopped before us, and we would likely pick up the
      * settings already modified by the shell.
      */
-    if (SP != 0 && !SP->_endwin)	/* don't do this if we're not in curses */
+    if (sp != 0 && !sp->_endwin)	/* don't do this if we're not in curses */
 #if HAVE_TCGETPGRP
 	if (tcgetpgrp(STDIN_FILENO) == getpgrp())
 #endif
-	    def_prog_mode();
+	    NCURSES_SP_NAME(def_prog_mode) (NCURSES_SP_ARG);
 
     /*
      * Block window change and timer signals.  The latter
@@ -166,7 +171,9 @@ tstp(int dummy GCC_UNUSED)
      * to repaint the screen.
      */
     (void) sigemptyset(&mask);
+#ifdef SIGALRM
     (void) sigaddset(&mask, SIGALRM);
+#endif
 #if USE_SIGWINCH
     (void) sigaddset(&mask, SIGWINCH);
 #endif
@@ -185,7 +192,7 @@ tstp(int dummy GCC_UNUSED)
      * End window mode, which also resets the terminal state to the
      * original (pre-curses) modes.
      */
-    endwin();
+    NCURSES_SP_NAME(endwin) (NCURSES_SP_ARG);
 
     /* Unblock SIGTSTP. */
     (void) sigemptyset(&mask);
@@ -212,19 +219,19 @@ tstp(int dummy GCC_UNUSED)
 
     T(("SIGCONT received"));
     sigaction(SIGTSTP, &oact, NULL);
-    flushinp();
+    NCURSES_SP_NAME(flushinp) (NCURSES_SP_ARG);
 
     /*
      * If the user modified the tty state while suspended, he wants
      * those changes to stick.  So save the new "default" terminal state.
      */
-    def_shell_mode();
+    NCURSES_SP_NAME(def_shell_mode) (NCURSES_SP_ARG);
 
     /*
      * This relies on the fact that doupdate() will restore the
      * program-mode tty state, and issue enter_ca_mode if need be.
      */
-    doupdate();
+    NCURSES_SP_NAME(doupdate) (NCURSES_SP_ARG);
 
     /* Reset the signals. */
     (void) sigprocmask(SIG_SETMASK, &omask, NULL);
@@ -234,16 +241,19 @@ tstp(int dummy GCC_UNUSED)
 static void
 cleanup(int sig)
 {
-    static int nested;
+    SCREEN *sp = CURRENT_SCREEN;
 
     /*
      * Actually, doing any sort of I/O from within an signal handler is
      * "unsafe".  But we'll _try_ to clean up the screen and terminal
      * settings on the way out.
      */
-    if (!nested++
+    if (!_nc_globals.cleanup_nested++
 	&& (sig == SIGINT
-	    || sig == SIGQUIT)) {
+#ifdef SIGQUIT
+	    || sig == SIGQUIT
+#endif
+	)) {
 #if HAVE_SIGACTION || HAVE_SIGVEC
 	sigaction_t act;
 	sigemptyset(&act.sa_mask);
@@ -254,19 +264,17 @@ cleanup(int sig)
 	if (signal(sig, SIG_IGN) != SIG_ERR)
 #endif
 	{
-	    SCREEN *scan = _nc_screen_chain;
-	    while (scan) {
-		if (SP != 0
-		    && SP->_ofp != 0
-		    && isatty(fileno(SP->_ofp))) {
-		    SP->_cleanup = TRUE;
-		    SP->_outch = _nc_outch;
+	    SCREEN *scan;
+	    for (each_screen(scan)) {
+		if (scan->_ofp != 0
+		    && isatty(fileno(scan->_ofp))) {
+		    scan->_cleanup = TRUE;
+		    scan->_outch = NCURSES_SP_NAME(_nc_outch);
 		}
 		set_term(scan);
-		endwin();
-		if (SP)
-		    SP->_endwin = FALSE;	/* in case we have an atexit! */
-		scan = scan->_next_screen;
+		NCURSES_SP_NAME(endwin) (NCURSES_SP_ARG);
+		if (sp)
+		    sp->_endwin = FALSE;	/* in case we have an atexit! */
 	    }
 	}
     }
@@ -277,7 +285,14 @@ cleanup(int sig)
 static void
 sigwinch(int sig GCC_UNUSED)
 {
-    _nc_handle_sigwinch(-1);
+    _nc_globals.have_sigwinch = 1;
+# if USE_PTHREADS_EINTR
+    if (_nc_globals.read_thread) {
+	if (!pthread_equal(pthread_self(), _nc_globals.read_thread))
+	    pthread_kill(_nc_globals.read_thread, SIGWINCH);
+	_nc_globals.read_thread = 0;
+    }
+# endif
 }
 #endif /* USE_SIGWINCH */
 
@@ -351,8 +366,6 @@ CatchIfDefault(int sig, RETSIGTYPE (*handler) (int))
 NCURSES_EXPORT(void)
 _nc_signal_handler(bool enable)
 {
-    static bool initialized = FALSE;
-
     T((T_CALLED("_nc_signal_handler(%d)"), enable));
 #if USE_SIGTSTP			/* Xenix 2.x doesn't have SIGTSTP, for example */
     {
@@ -381,14 +394,14 @@ _nc_signal_handler(bool enable)
     }
 #endif /* !USE_SIGTSTP */
 
-    if (!initialized) {
+    if (!_nc_globals.init_signals) {
 	if (enable) {
 	    CatchIfDefault(SIGINT, cleanup);
 	    CatchIfDefault(SIGTERM, cleanup);
 #if USE_SIGWINCH
 	    CatchIfDefault(SIGWINCH, sigwinch);
 #endif
-	    initialized = TRUE;
+	    _nc_globals.init_signals = TRUE;
 	}
     }
     returnVoid;