37 lines
1.4 KiB
Diff
37 lines
1.4 KiB
Diff
From 9264c7f367e44ce2d4e773add80b63e1777e3e0f Mon Sep 17 00:00:00 2001
|
|
From: Frediano Ziglio <fziglio@redhat.com>
|
|
Date: Thu, 5 Jul 2018 16:13:00 +0100
|
|
Subject: [PATCH 42/43] vdagent: Add a comment around WinSta0_DesktopSwitch
|
|
event usage
|
|
|
|
Multiple times while I was reading this code was not clear why the
|
|
synchronization of this event was not done in the main event loop.
|
|
Also document why we want to use it not relying just on
|
|
WTSRegisterSessionNotification and WM_WTSSESSION_CHANGE.
|
|
|
|
Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
|
|
Acked-by: Christophe Fergeau <cfergeau@redhat.com>
|
|
---
|
|
vdagent/vdagent.cpp | 5 +++++
|
|
1 file changed, 5 insertions(+)
|
|
|
|
diff --git a/vdagent/vdagent.cpp b/vdagent/vdagent.cpp
|
|
index e577679..be17ddc 100644
|
|
--- a/vdagent/vdagent.cpp
|
|
+++ b/vdagent/vdagent.cpp
|
|
@@ -232,6 +232,11 @@ VDAgent::~VDAgent()
|
|
DWORD WINAPI VDAgent::event_thread_proc(LPVOID param)
|
|
{
|
|
VDAgent *agent = static_cast<VDAgent *>(param);
|
|
+ // This event is monitored in a separate thread to avoid losing
|
|
+ // events as the event is signaled with PulseEvent to wake up all
|
|
+ // thread waiting for it.
|
|
+ // This event allows to detect desktop switches which do not
|
|
+ // change sessions like pressing Ctrl-Alt-Delete.
|
|
HANDLE desktop_event = OpenEvent(SYNCHRONIZE, FALSE, L"WinSta0_DesktopSwitch");
|
|
if (!desktop_event) {
|
|
vd_printf("OpenEvent() failed: %lu", GetLastError());
|
|
--
|
|
2.17.1
|
|
|