Merge from mainline.

1 files changed, 38 insertions, 12 deletions

diff --git a/src/sysdep.c b/src/sysdep.c
index 43f50cdb0a9..5ad3389dd8f 100644
--- a/src/sysdep.c
+++ b/src/sysdep.c
@@ -296,11 +296,9 @@ init_baud_rate (int fd)
 int wait_debugging EXTERNALLY_VISIBLE;
 
 #ifndef MSDOS
-/* Wait for subprocess with process id `pid' to terminate and
-   make sure it will get eliminated (not remain forever as a zombie) */
 
-void
-wait_for_termination (int pid)
+static void
+wait_for_termination_1 (int pid, int interruptible)
 {
   while (1)
     {
@@ -339,9 +337,27 @@ wait_for_termination (int pid)
       sigsuspend (&empty_mask);
 #endif /* not WINDOWSNT */
 #endif /* not BSD_SYSTEM, and not HPUX version >= 6 */
+      if (interruptible)
+        QUIT;
     }
 }
 
+/* Wait for subprocess with process id `pid' to terminate and
+   make sure it will get eliminated (not remain forever as a zombie) */
+
+void
+wait_for_termination (int pid)
+{
+  wait_for_termination_1 (pid, 0);
+}
+
+/* Like the above, but allow keyboard interruption. */
+void
+interruptible_wait_for_termination (int pid)
+{
+  wait_for_termination_1 (pid, 1);
+}
+
 /*
  *      flush any pending output
  *      (may flush input as well; it does not matter the way we use it)
@@ -1109,8 +1125,7 @@ tabs_safe_p (int fd)
 void
 get_tty_size (int fd, int *widthp, int *heightp)
 {
-
-#ifdef TIOCGWINSZ
+#if defined TIOCGWINSZ
 
   /* BSD-style.  */
   struct winsize size;
@@ -1123,8 +1138,7 @@ get_tty_size (int fd, int *widthp, int *heightp)
       *heightp = size.ws_row;
     }
 
-#else
-#ifdef TIOCGSIZE
+#elif defined TIOCGSIZE
 
   /* SunOS - style.  */
   struct ttysize size;
@@ -1137,16 +1151,28 @@ get_tty_size (int fd, int *widthp, int *heightp)
       *heightp = size.ts_lines;
     }
 
-#else
-#ifdef MSDOS
+#elif defined WINDOWSNT
+
+  CONSOLE_SCREEN_BUFFER_INFO info;
+  if (GetConsoleScreenBufferInfo (GetStdHandle (STD_OUTPUT_HANDLE), &info))
+    {
+      *widthp = info.srWindow.Right - info.srWindow.Left + 1;
+      *heightp = info.srWindow.Bottom - info.srWindow.Top + 1;
+    }
+  else
+    *widthp = *heightp = 0;
+
+#elif defined MSDOS
+
   *widthp = ScreenCols ();
   *heightp = ScreenRows ();
+
 #else /* system doesn't know size */
+
   *widthp = 0;
   *heightp = 0;
+
 #endif
-#endif /* not SunOS-style */
-#endif /* not BSD-style */
 }
 
 /* Set the logical window size associated with descriptor FD