ncurses 5.6 - patch 20070310

[ncurses.git] / ncurses / base / lib_getch.c

diff --git a/ncurses/base/lib_getch.c b/ncurses/base/lib_getch.c
index 84700cc7a1bf20be2d0863d76781ad24b4e8a2ef..670ac39edf938e4ed3e4f2da7a1ee722f4ffe973 100644 (file)
--- a/ncurses/base/lib_getch.c
+++ b/ncurses/base/lib_getch.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 1998-2001,2002 Free Software Foundation, Inc.              *
+ * Copyright (c) 1998-2006,2007 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            *
@@ -29,6 +29,7 @@
 /****************************************************************************
  *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
  *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
+ *     and: Thomas E. Dickey                        1996-on                 *
  ****************************************************************************/
 
 /*
@@ -40,12 +41,20 @@
 
 #include <curses.priv.h>
 
-MODULE_ID("$Id: lib_getch.c,v 1.71 2003/05/17 23:49:28 tom Exp $")
+MODULE_ID("$Id: lib_getch.c,v 1.78 2007/03/10 19:22:28 tom Exp $")
 
 #include <fifo_defs.h>
 
+#if USE_REENTRANT
+NCURSES_EXPORT(int)
+NCURSES_PUBLIC_VAR(ESCDELAY) (void)
+{
+    return SP ? SP->_ESCDELAY : 1000;
+}
+#else
 NCURSES_EXPORT_VAR(int)
 ESCDELAY = 1000;               /* max interval betw. chars in funkeys, in millisecs */
+#endif
 
 #ifdef NCURSES_WGETCH_EVENTS
 #define TWAIT_MASK 7
@@ -79,7 +88,7 @@ check_mouse_activity(int delay EVENTLIST_2nd(_nc_eventlist * evl))
     return rc;
 }
 
-static inline int
+static NCURSES_INLINE int
 fifo_peek(void)
 {
     int ch = SP->_fifo[peek];
@@ -89,7 +98,7 @@ fifo_peek(void)
     return ch;
 }
 
-static inline int
+static NCURSES_INLINE int
 fifo_pull(void)
 {
     int ch;
@@ -109,7 +118,7 @@ fifo_pull(void)
     return ch;
 }
 
-static inline int
+static NCURSES_INLINE int
 fifo_push(EVENTLIST_0th(_nc_eventlist * evl))
 {
     int n;
@@ -205,7 +214,7 @@ fifo_push(EVENTLIST_0th(_nc_eventlist * evl))
     return ch;
 }
 
-static inline void
+static NCURSES_INLINE void
 fifo_clear(void)
 {
     memset(SP->_fifo, 0, sizeof(SP->_fifo));
@@ -233,15 +242,16 @@ _nc_wgetch(WINDOW *win,
     T((T_CALLED("_nc_wgetch(%p)"), win));
 
     *result = 0;
-    if (!win)
+    if (win == 0 || SP == 0) {
        returnCode(ERR);
+    }
 
     if (cooked_key_in_fifo()) {
        if (wgetch_should_refresh(win))
            wrefresh(win);
 
        *result = fifo_pull();
-       returnCode(OK);
+       returnCode(*result >= KEY_MIN ? KEY_CODE_YES : OK);
     }
 #ifdef NCURSES_WGETCH_EVENTS
     if (evl && (evl->count == 0))
@@ -280,12 +290,10 @@ _nc_wgetch(WINDOW *win,
        /* Return it first */
        if (rc == KEY_EVENT) {
            *result = rc;
-           returnCode(OK);
-       }
+       } else
 #endif
-
-       *result = fifo_pull();
-       returnCode(OK);
+           *result = fifo_pull();
+       returnCode(*result >= KEY_MIN ? KEY_CODE_YES : OK);
     }
 
     if (win->_use_keypad != SP->_keypad_on)
@@ -295,28 +303,29 @@ _nc_wgetch(WINDOW *win,
        wrefresh(win);
 
     if (!win->_notimeout && (win->_delay >= 0 || SP->_cbreak > 1)) {
-       int delay;
+       if (head == -1) {       /* fifo is empty */
+           int delay;
+           int rc;
 
-       TR(TRACE_IEVENT, ("timed delay in wgetch()"));
-       if (SP->_cbreak > 1)
-           delay = (SP->_cbreak - 1) * 100;
-       else
-           delay = win->_delay;
+           TR(TRACE_IEVENT, ("timed delay in wgetch()"));
+           if (SP->_cbreak > 1)
+               delay = (SP->_cbreak - 1) * 100;
+           else
+               delay = win->_delay;
 
 #ifdef NCURSES_WGETCH_EVENTS
-       if (event_delay >= 0 && delay > event_delay)
-           delay = event_delay;
+           if (event_delay >= 0 && delay > event_delay)
+               delay = event_delay;
 #endif
 
-       TR(TRACE_IEVENT, ("delay is %d milliseconds", delay));
+           TR(TRACE_IEVENT, ("delay is %d milliseconds", delay));
 
-       if (head == -1) {       /* fifo is empty */
-           int rc = check_mouse_activity(delay EVENTLIST_2nd(evl));
+           rc = check_mouse_activity(delay EVENTLIST_2nd(evl));
 
 #ifdef NCURSES_WGETCH_EVENTS
            if (rc & 4) {
                *result = KEY_EVENT;
-               returnCode(OK);
+               returnCode(KEY_CODE_YES);
            }
 #endif
            if (!rc)
@@ -466,7 +475,7 @@ wgetch(WINDOW *win)
     T((T_CALLED("wgetch(%p)"), win));
     code = _nc_wgetch(win,
                      &value,
-                     SP->_use_meta
+                     (SP ? SP->_use_meta : 0)
                      EVENTLIST_2nd((_nc_eventlist *) 0));
     if (code != ERR)
        code = value;
@@ -491,7 +500,7 @@ wgetch(WINDOW *win)
 static int
 kgetch(EVENTLIST_0th(_nc_eventlist * evl))
 {
-    struct tries *ptr;
+    TRIES *ptr;
     int ch = 0;
     int timeleft = ESCDELAY;
 
@@ -558,7 +567,7 @@ kgetch(EVENTLIST_0th(_nc_eventlist * evl))
 #ifdef NCURSES_WGETCH_EVENTS
            if (rc & 4) {
                TR(TRACE_IEVENT, ("interrupted by a user event"));
-               /* FIXME Should have preserved remainder timeleft for reusal... */
+               /* FIXME Should have preserved remainder timeleft for reuse... */
                peek = head;    /* Restart interpreting later */
                return KEY_EVENT;
            }