[RFA] windows-nat.c: Enable processed input at startup

Pierre Muller
2010-04-26T11:41:21Z

This is the patch I was talking about in
a reply to this thread:
http://sourceware.org/ml/gdb/2010-04/msg00113.html

It ensures that at startup, if GDB can connect to the console
the console mode is modified to enable processed input.
This make '^C' (ascii #3) to be interpreted as a
control event.

Pierre Muller
Pascal language support maintainer for GDB

2010-04-26 Pierre Muller <muller@ics.u-strasbg.fr>

* windows-nat.c (_initialize_windows_nat): Try to set
ENABLE_PROCESSED_INPUT for console mode if accessible.

Index: windows-nat.c
===================================================================
RCS file: /cvs/src/src/gdb/windows-nat.c,v
retrieving revision 1.208
diff -u -p -r1.208 windows-nat.c
--- windows-nat.c 16 Apr 2010 07:49:35 -0000 1.208
+++ windows-nat.c 26 Apr 2010 11:33:08 -0000
@@ -2356,6 +2356,22 @@ void
_initialize_windows_nat (void)
{
struct cmd_list_element *c;
+ HANDLE std_in_handle;
+
+ /* Try to enable processed input for the console.
+ This should allow to use '^C' to interrupt the debuggee
+ at least as log as the debugge does not modify the
+ console mode settings. */
+ std_in_handle = CreateFile ("CONIN$", GENERIC_READ | GENERIC_WRITE,
+ FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0);
+
+ if (std_in_handle != INVALID_HANDLE_VALUE)
+ {
+ DWORD console_mode;
+ CHECK (GetConsoleMode (std_in_handle, &console_mode));
+ console_mode = console_mode | ENABLE_PROCESSED_INPUT;
+ CHECK (SetConsoleMode (std_in_handle, console_mode));
+ }

init_windows_ops ();