intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 23 insertions, 0 deletions

diff --git a/util/system/getpid.cpp b/util/system/getpid.cpp
new file mode 100644
index 0000000000..b9615f0dfa
--- /dev/null
+++ b/util/system/getpid.cpp
@@ -0,0 +1,23 @@
+#include "getpid.h"
+
+#ifdef _win_
+    // The include file should be Windows.h for Windows <=7, Processthreadsapi.h for Windows >=8 and Server 2012,
+    // see http://msdn.microsoft.com/en-us/library/windows/desktop/ms683180%28v=vs.85%29.aspx
+    // The way to determine windows version is described in http://msdn.microsoft.com/en-us/library/windows/desktop/aa383745%28v=vs.85%29.aspx
+    // with additions about Windows Server 2012 in https://social.msdn.microsoft.com/forums/vstudio/en-US/8d76d1d7-d078-4c55-963b-77e060845d0c/what-is-ntddiversion-value-for-ws-2012
+    #include <Windows.h>
+    #if defined(NTDDI_WIN8) && (NTDDI_VERSION >= NTDDI_WIN8)
+        #include <processthreadsapi.h>
+    #endif
+#else
+    #include <sys/types.h>
+    #include <unistd.h>
+#endif
+
+TProcessId GetPID() {
+#ifdef _win_
+    return GetCurrentProcessId();
+#else
+    return getpid();
+#endif
+}