diff options
Diffstat (limited to 'winsup/cygwin/fhandler_console.cc')
| -rw-r--r-- | winsup/cygwin/fhandler_console.cc | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/winsup/cygwin/fhandler_console.cc b/winsup/cygwin/fhandler_console.cc index bd58c3a12..7e266ab8d 100644 --- a/winsup/cygwin/fhandler_console.cc +++ b/winsup/cygwin/fhandler_console.cc @@ -110,6 +110,23 @@ set_console_state_for_spawn () return 1; } +void +fhandler_console::set_cursor_maybe () +{ + CONSOLE_SCREEN_BUFFER_INFO now; + static CONSOLE_SCREEN_BUFFER_INFO last = {{0, 0}, {-1, -1}, 0, {0, 0}, {0, 0}}; + + if (!GetConsoleScreenBufferInfo (get_output_handle(), &now)) + return; + + if (last.dwCursorPosition.X != now.dwCursorPosition.X || + last.dwCursorPosition.Y != now.dwCursorPosition.Y) + { + SetConsoleCursorPosition (get_output_handle (), now.dwCursorPosition); + last.dwCursorPosition = now.dwCursorPosition; + } +} + int fhandler_console::read (void *pv, size_t buflen) { @@ -147,7 +164,7 @@ fhandler_console::read (void *pv, size_t buflen) if ((bgres = bg_check (SIGTTIN)) <= 0) return bgres; - cursor_rel (0,0); /* to make cursor appear on the screen immediately */ + set_cursor_maybe (); /* to make cursor appear on the screen immediately */ switch (WaitForMultipleObjects (nwait, w4, FALSE, INFINITE)) { case WAIT_OBJECT_0: @@ -1244,6 +1261,7 @@ fhandler_console::write (const void *vsrc, size_t len) break; } } + syscall_printf ("%d = write_console (,..%d)", len, len); return len; |