# HG changeset patch
# User Volker Birk <vb@pep-project.org>
# Date 1478983442 -3600
# Node ID db006c43bb2a78472676e85e74b47e08f00565ac
# Parent  21b7749b5bebe0a9ce775531bf46982b4b3f1517
switching to semaphore

diff -r 21b7749b5beb -r db006c43bb2a GateKeeper.cpp
--- a/GateKeeper.cpp	Sat Nov 12 00:29:25 2016 +0100
+++ b/GateKeeper.cpp	Sat Nov 12 21:44:02 2016 +0100
@@ -380,11 +380,11 @@
     void GateKeeper::update_product(product p, DWORD context)
     {
 		{
-			HANDLE hMutex = CreateMutex(NULL, TRUE, _T("PEPINSTALLERMUTEX"));
-			if (hMutex)
-				CloseHandle(hMutex);
-			else
+			HANDLE hSemaphore = CreateSemaphore(NULL, 0, 2, _T("PEPINSTALLERSEMAPHORE"));
+			if (GetLastError() != ERROR_SUCCESS)
 				return;
+			else if (hSemaphore)
+				CloseHandle(hSemaphore);
 		}
 
         BCRYPT_KEY_HANDLE dk = delivery_key();