[PATCH 16/34] Windows gdb+gdbserver: Introduce get_last_debug_event_ptid

[Pedro Alves <pedro@palves.net>]

This will be used in subsequent patches to avoid using
DBG_EXCEPTION_NOT_HANDLED on the wrong thread.

Change-Id: I32915623b5036fb902f9830ce2d6f0b1ccf1f5cf
---
 gdb/nat/windows-nat.c | 8 ++++++++
 gdb/nat/windows-nat.h | 5 +++++
 2 files changed, 13 insertions(+)

diff --git a/gdb/nat/windows-nat.c b/gdb/nat/windows-nat.c
index a01d7b3c0c0..7f8834facd4 100644
--- a/gdb/nat/windows-nat.c
+++ b/gdb/nat/windows-nat.c
@@ -666,6 +666,14 @@ windows_process_info::add_all_dlls ()
 
 /* See nat/windows-nat.h.  */
 
+ptid_t
+get_last_debug_event_ptid ()
+{
+  return ptid_t (last_wait_event.dwProcessId, last_wait_event.dwThreadId, 0);
+}
+
+/* See nat/windows-nat.h.  */
+
 BOOL
 continue_last_debug_event (DWORD continue_status, bool debug_events)
 {
diff --git a/gdb/nat/windows-nat.h b/gdb/nat/windows-nat.h
index c268a12fd8f..70912fd6210 100644
--- a/gdb/nat/windows-nat.h
+++ b/gdb/nat/windows-nat.h
@@ -253,6 +253,11 @@ struct windows_process_info
 extern BOOL continue_last_debug_event (DWORD continue_status,
 				       bool debug_events);
 
+/* Return the ptid_t of the thread that the last waited-for event was
+   for.  */
+
+extern ptid_t get_last_debug_event_ptid ();
+
 /* A simple wrapper for WaitForDebugEvent that also sets the internal
    'last_wait_event' on success.  */
 
-- 
2.43.2