Index: base/process/process_handle.cc |
diff --git a/base/process/process_handle.cc b/base/process/process_handle.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..3ec91175614cb62fab30f88038dde7059f141615 |
--- /dev/null |
+++ b/base/process/process_handle.cc |
@@ -0,0 +1,39 @@ |
+// Copyright 2015 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#include "base/basictypes.h" |
+#include "base/logging.h" |
+#include "base/process/process_handle.h" |
+ |
+namespace base { |
+ |
+namespace { |
+uint32 g_unique_id = kInvalidUniqueId; |
+ |
+#if DCHECK_IS_ON() |
+// The process which set g_unique_id. |
Lei Zhang
2015/07/28 21:54:23
Please refer to variables are |foo|. Ditto below.
rickyz (no longer on Chrome)
2015/07/28 22:39:37
Done.
|
+uint32 g_procid; |
+#endif |
+} // namespace |
+ |
+uint32 GetUniqueIdForProcess() { |
+ if (g_unique_id == kInvalidUniqueId) { |
+ return static_cast<uint32>(GetCurrentProcId()); |
+ } |
+ |
+ // Make sure we are the same process that set g_procid. This check may have |
+ // false negatives (if a process ID was reused) but should have no false |
+ // positives. |
+ DCHECK_EQ(static_cast<uint32>(GetCurrentProcId()), g_procid); |
+ return g_unique_id; |
+} |
+ |
+void SetUniqueIdForProcess(uint32 unique_id) { |
+ g_unique_id = unique_id; |
+#if DCHECK_IS_ON() |
+ g_procid = static_cast<uint32>(GetCurrentProcId()); |
+#endif |
+} |
+ |
+} // namespace base |