[binutils-gdb] Windows gdb+gdbserver: Introduce get_last_debug_event_ptid

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=898afc7976ac09b9dfc49a13140bdae23b3eb988

commit 898afc7976ac09b9dfc49a13140bdae23b3eb988
Author: Pedro Alves <[email protected]>
Date:   Thu May 11 12:27:27 2023 +0100

    Windows gdb+gdbserver: Introduce get_last_debug_event_ptid
    
    This will be used in subsequent patches to avoid using
    DBG_EXCEPTION_NOT_HANDLED on the wrong thread.
    
    Approved-By: Tom Tromey <[email protected]>
    Change-Id: I32915623b5036fb902f9830ce2d6f0b1ccf1f5cf
    commit-id:1cf51152

Diff:
---
 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 cf173295517..11151fdc28a 100644
--- a/gdb/nat/windows-nat.c
+++ b/gdb/nat/windows-nat.c
@@ -642,6 +642,14 @@ 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 075d3858350..8d97ecc4cb6 100644
--- a/gdb/nat/windows-nat.h
+++ b/gdb/nat/windows-nat.h
@@ -278,6 +278,11 @@ private:
 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.  */